[He's completely calm. Where he's from, you declare war on someone and THEN go back to get your armies and kick the other nation's ass. That bad habit of attack first and declaare war later that some nations will develop in the future doesn't fit into the way that he thinks in.

Plus, it is Denmark. They have fought before, and in a direct confrontation, they are at least equals. He isn't in danger of losing should Denmark attack.]

It is better 'f he b'longs to me th'n to you and Prussia.

[Strictly historically seen that is totally correct. Just that Latvia is already mostly Christian by now so there are no crusades necessary anymore. Yet still.
Denmark and Prussia just never seemed good at raising kids to him.]